Adapted from 
                        Homemade Is Better
                    
                
                
            
                
                    
                            - 
                                   
                                Batter:
                            
 
                            - 
                                1 c
                                unbleached flour
                            
 
                            - 
                                1 c
                                light brown sugar, packed
                            
 
                            - 
                                1/3 c
                                cocoa powder, sifted
                            
 
                            - 
                                3/4 tsp
                                baking soda
                            
 
                            - 
                                1/4 tsp
                                salt
                            
 
                            - 
                                1/4 c
                                light margarine, softened
                            
 
                            - 
                                1/3 c
                                fat-free milk
                            
 
                            - 
                                1/4 c
                                egg whites, slightly beaten
                            
 
                            - 
                                   
                                Filling:
                            
 
                            - 
                                4 ozs
                                fat-free cream cheese, softened
                            
 
                            - 
                                1/4 c
                                peanut butter
                            
 
                            - 
                                1 tbsp
                                honey
                            
 
                            - 
                                1 tbsp
                                fat-free milk
                            
 
                            - 
                                2 tsps
                                pure vanilla extract
                            
 
                    
                 
             
            
Preheat oven to 375. Prepare 12 muffin cups with cooking spray and flour; set aside. In a mixing bowl, sift together flour, brown sugar, cocoa powder, baking soda, and salt. In another mixing bowl, combine margarine, 1/3 cup milk, and egg whites. Mix dry ingredients with wet ingredients just until moistened; set aside. In another mixing bowl, combine cream cheese, peanut butter, honey, remaining milk, and vanilla extract. Place 2 tablespoons batter into prepared cups. Spoon rounded teaspoon of cream cheese mixture into center of each. Fill cups half full with remaining batter, one tablespoon each. Bake for 20 minutes.