Good-Cooking - Aztec Chocolate Cake

Ingredients

• 4 ounces (100-125g) butter
• 5 1/2 ounces (150g) granulated sugar
• 3 eggs
• 3 ounces (80g) dark cacao powder
• 4 ounces all-purpose flour
• 1/2 teaspoon vanilla extract
• 1 teaspoon baking powder or soda
• 2-3 teaspoons chili powder