How to Bake with Coconut Flour: Tips & Tricks - What is coconut flour & how is it used for baking - Coconut flour is extraordinarily absorbent. Very little coconut flour is needed to produce a recipe. In baking, you generally want to substitute 1/4-1/3 cup coconut flour for 1 cup grain-based flour. You will also need to increase the number of eggs. In general for every one cup of coconut flour you use, you will need to use six beaten eggs in your recipe plus about 1 cup liquid.