Miniature Chili Chocolate Cake

Ingredients

• 120g flour
• 200g sugar
• 32g dutch-process cocoa
• 1 tsp/4g baking powder
• 3/4 tsp/4.5g baking soda
• 1/2 tsp/1.5g salt
• 1/2 tsp/1g espresso powder
• 1/2 c. milk (110g)
• 1/4 c. vegetable oil (50g)
• 1 large egg
• 1 tsp (5g) vanilla extract
• 1/2 c. (110g) boiling water