Can you use cocoa powder in a recipe that calls for semi sweet chocolate?

It depends on what you're making! Here's a breakdown:

When you CAN use cocoa powder as a substitute for semi-sweet chocolate:

* Baking: Cocoa powder can be used in place of semi-sweet chocolate in most baking recipes. You'll need to adjust the recipe to account for the difference in sweetness and moisture.

* General Conversion: Replace 1 ounce of semi-sweet chocolate with 2 tablespoons of unsweetened cocoa powder and 1 tablespoon of granulated sugar.

* Example: If a recipe calls for 4 ounces of semi-sweet chocolate, you'd use 8 tablespoons (1/2 cup) of cocoa powder and 4 tablespoons of sugar.

* Simple Sauces: Cocoa powder can be used to make a simple chocolate sauce, but it won't have the same richness as a sauce made with melted chocolate.

When you SHOULD NOT use cocoa powder to substitute semi-sweet chocolate:

* When you need the texture of melted chocolate: Cocoa powder won't melt and create the same smooth, silky texture as melted chocolate. This is especially important for things like ganache, chocolate truffles, and chocolate bark.

* When you need the specific flavor of chocolate: Cocoa powder has a different flavor profile than chocolate. If the recipe relies on the unique flavor of semi-sweet chocolate, using cocoa powder will change the final taste.

In short:

* Baking: Cocoa powder can be a good substitute for semi-sweet chocolate, but you'll need to adjust the recipe accordingly.

* Other applications: Using cocoa powder in place of semi-sweet chocolate can work in some cases, but it will change the texture and flavor of the final product.

It's best to experiment and see what works for you! If you're unsure, stick with using semi-sweet chocolate as the recipe intended.