01 -
Heat oven to 350 degrees Fahrenheit.
02 -
In a standing mixer, beat together butter and sugar until creamy. Mix in egg and vanilla extract.
03 -
In a medium bowl, mix together flour, baking powder, and salt.
04 -
Gradually mix the dry ingredients into the wet ingredients until dough forms.
05 -
Using a small ice cream scoop, scoop out dough, roll into small balls, and place onto the cookie sheet. Bake for 8-10 minutes.
06 -
Remove cookies from the oven and quickly press thumb into the top of each cookie. Transfer cookies to a wire rack to cool completely.
07 -
In a small mixing bowl, melt butter in the microwave. Mix in cocoa, powdered sugar, vanilla extract, and hot water until smooth and creamy.
08 -
Spoon chocolate frosting into each thumbprint and top with a mini Cadbury egg.