Thin Mint Cupcakes - Cupcake Fanatic

Ingredients

• 1/2 cup unsalted butter
• 1/2 cup cocoa powder (I used Hershey Special Dark – but use what you prefer)
• 1 teaspoon kosher salt
• 1/2 cup water
• 1 cup all-purpose flour
• 3/4 cups granulated sugar
• 3/4 teaspoons baking soda
• 1 large egg
• 1/2 cup low-fat plain (or vanilla) yogurt
• 1 teaspoon pure vanilla extract
• 1 sleeve Girl Scout Thin Mint Cookies (16 cookies), crushed slightly
• 1/2 cup butter, room temperature
• 3 cups powdered sugar
• 1 tsp. mint extract
• 2 Tbs. milk, more if needed