Cream butter, peanut butter and white and brown sugars. Mix in egg and 1/2 teaspoon vanilla. Stir the flour mixture into creamed mixture. Shape the dough into 48 balls, 1 inch each. Place each ball in one compartment of a mini muffin tin.
Step 4
For filling, put chocolate chips in a double boiler over simmering water. Stir in milk and vanilla, mix well.
Step 5
Bake for 14 to 16 minutes or until lightly browned. Remove from oven and immediately make wells in the center of each using a melon baller. Cool in pan for 5 minutes. Then carefully remove to wire racks. Using a measuring cup fill each shell with the chocolate mixture. Top with a pecan half.
