Green Banana Flour Sweet and Sour Fish | Easy Recipe

When you want something crispy, savory, tangy, and slightly sweet all in one dish, Green Banana Flour Sweet and Sour Fish is a recipe worth trying. This recipe takes a familiar sweet and sour fish dish and gives it a simple ingredient twist by using green banana flour for both the crispy coating and the sauce thickener.

What makes this recipe interesting is how easily green banana flour fits into savory cooking. While flour is often associated with bread, pancakes, and other baked goods, it can also be used for frying and thickening. In this recipe, it becomes part of the cooking process from the crispy fish coating to the final consistency of the sauce.

Ingredients

For the Fish

• Fish fillets or your preferred fish
• Salt, to taste
• Black pepper, to taste
• Green banana flour, enough to coat the fish
• Cooking oil, for frying

For the Sweet and Sour Sauce

• 1 small onion, sliced
• 3 cloves garlic, minced
• ¼ cup vinegar
• ½ cup ketchup
• 2–3 tablespoons brown sugar
• 1 red bell pepper, sliced
• Water, as needed

For the Green Banana Flour Thickener

• 1–2 tablespoons green banana flour
• ¼ cup water

Adjust the quantities according to the amount of fish and your preferred sauce consistency.

 

Preparing the Fish

Start by cleaning and preparing the fish. Pat the fish dry before seasoning it with salt and black pepper. Keeping the surface relatively dry helps the green banana flour adhere more evenly.

Once seasoned, coat each piece generously but evenly with green banana flour. Make sure the flour covers the fish on all sides, then gently shake off any excess.

One thing to observe during this step is the texture of the coating. The green banana flour should form a light, even layer around the fish rather than a thick, uneven coating. This helps create a more consistent crust once the fish is fried.

Frying the Fish

Heat enough cooking oil in a pan for frying. Once the oil is hot, carefully add the coated fish.

Fry the fish until the coating becomes golden and crisp and the fish is cooked through. Avoid overcrowding the pan, as adding too many pieces at once can make it more difficult for the fish to fry evenly.

Once cooked, transfer the fish to a rack or a plate lined with paper towels to remove excess oil.

At this point, the fish should already have a lightly crisp exterior. If you're preparing the sauce separately, keeping the fried fish uncovered helps preserve some of that texture until you're ready to serve.

Preparing the Sweet and Sour Sauce

Now comes the part that brings everything together.

In a clean pan, sauté the onions and garlic in a small amount of cooking oil. Cook until the onions begin to soften and the garlic becomes fragrant.

Next, add the vinegar and allow it to simmer briefly. Then add the ketchup and stir well until the ingredients are incorporated.

Add the brown sugar and continue stirring as it dissolves into the sauce. The combination of vinegar and brown sugar creates the familiar sweet-and-tangy character of the dish, while the ketchup gives the sauce its rich color and savory-sweet base.

Add the sliced red bell peppers and let them cook in the sauce. You can cook them until they become tender or leave them slightly crisp for more texture.

Using Green Banana Flour as a Thickener

For the final step in preparing the sauce, create a simple green banana flour slurry.

Mix the green banana flour with water in a separate bowl. Stir thoroughly until there are no visible lumps. Creating the slurry before adding the flour to the pan helps it incorporate more evenly into the sauce.

Slowly pour the mixture into the simmering sweet and sour sauce while stirring continuously.

You’ll notice the sauce gradually becoming thicker. Continue simmering until you reach the consistency you prefer. If the sauce becomes too thick, add a small amount of water and stir until it reaches the desired texture.

This is one of the interesting parts of using green banana flour in cooking. The same ingredient used to coat the fish can also be incorporated into the sauce, making it a practical ingredient to experiment with beyond traditional baking.

Bringing Everything Together

Once the sauce has reached your preferred consistency, turn off the heat.

Arrange the crispy fried fish on a serving plate and pour the warm sweet and sour sauce over the top. For a better presentation, spoon the sauce over the fish rather than completely submerging it. This allows some of the crispy coating to remain visible.

Garnish with additional sliced red bell pepper or spring onions if desired, then serve immediately with steamed rice.

The finished dish brings together several textures and flavors—the crisp coating of the fried fish, the soft vegetables, and the smooth, glossy sweet and sour sauce.

My Take on the Recipe

What I enjoyed about making this recipe was seeing how green banana flour can be used outside of the usual baking recipes. I initially think of flour as something for pancakes, bread, or pastries, but using it as a coating and sauce thickener gives it a completely different purpose in the kitchen.

The coating also makes the recipe feel like a simple ingredient swap rather than a completely new cooking method. You can still season, coat, fry, and serve the fish the way you normally would, while experimenting with a naturally sourced, gluten-free flour.

For anyone who enjoys trying new ingredients, this is an easy recipe to start with. You don't need to completely change the way you cook. Sometimes, experimenting with one ingredient is enough to discover another way to prepare a familiar favorite.

A Simple Way to Explore Green Banana Flour

Green banana flour can be used in a variety of everyday recipes, making it an interesting healthy alternative flour for home cooks who want to explore different ingredients. Its naturally occurring resistant starch and prebiotic components are also part of what makes green banana flour an increasingly interesting ingredient to include in food experimentation.

Rather than treating healthier cooking as a complete lifestyle overhaul, recipes like this show how small, practical changes can fit naturally into everyday meals. Whether you're coating fish, preparing pancakes, baking, or experimenting with sauces, green banana flour gives you another ingredient to work with in the kitchen.

So the next time you're preparing sweet and sour fish, consider putting your usual flour aside and giving green banana flour a try. You may discover a new favorite way to prepare a familiar dish.

Recipe Tips

➡️ Pat the fish dry before coating to help the green banana flour adhere properly.

➡️ Don't overcrowd the pan when frying. Frying in batches can help the fish cook more evenly.

➡️ Mix green banana flour with water separately before adding it to the sauce to help prevent lumps.

👉 Shop Banana Island Green Banana Flour on Amazon US, Shopee PH, or our Korea smart store and start cooking gluten-free with confidence.

© 2026 Banana Island by Cornerstone T&M Co., Ltd. All rights reserved.

➡️ Add the thickener gradually. This gives you better control over the final sauce consistency.

➡️ Serve immediately after adding the sauce if you want to enjoy more of the contrast between the crispy fish and smooth sauce.