Chewy Chocolate Peanut Butter Chip Cookies

1 ½ cups butter, melted

2 cups white sugar

2 eggs

1 teaspoon vanilla extract

2 cups all-purpose flour

¾ cup unsweetened cocoa powder

1 teaspoon baking soda

½ teaspoon salt

2 cups peanut butter chips

Preheat oven to 350 degrees F (175 degrees C).

In a large bowl, mix together butter and sugar. Beat in eggs and vanilla. Combine flour, cocoa, baking soda, and salt; gradually stir into the butter mixture. Mix in peanut butter chips. Drop by rounded teaspoons onto ungreased cookie sheets.

Bake 8 to 10 minutes in preheated oven. Cool for 1 minute before placing on wire racks to cool completely.