1/2 C semisweet chocolate chips
1/2 C coconut
1 C chopped walnuts
1-1/2 C powdered sugar
1-1/4 C graham cracker crumbs (about 9 whole crackers)
1/2 C peanut butter
1/4 C evaporated milk
1/3 C cocoa powder
1/3 C granulated sugar

In a food processor, process the chips, coconut, and nuts to a texture of coarse crumbs. Add powdered sugar and graham cracker crumbs. Process to blend well.
Add peanut butter and evap milk, processing until the mixture begins to hold together.
Spread cocoa powder and granulated sugar on separate plates. Roll mixture into 1-inch balls, then roll in cocoa, then in sugar. Store in airtight container in cool, dry place for 1 day before serving.

Makes about 42 90-calorie balls.