1-1/2 cups finely crushed creme-filled chocolate sandwich cookies (about 18 cookies)
2-3 teaspoons margarine or butter, melted
3 packages cream cheese, softened
1 can sweetened condensed milk
3 eggs
2 teaspoons vanilla extract
1 cup mini chocolate chips
1 teaspoon flour

Preheat oven to 300. Combine crumbs and margarine; press firmly on bottom of 9 inch springform pan or 13 x 9 inch baking pan. In large mixer bowl, beat cheese until fluffy. Gradually beat in milk until smooth. Add eggs and vanilla; mix well. In small bowl, toss 1/2 cup chips with flour to coat; stir into cheese mixture. Pour into prepared pan. Sprinkle remaining 1/2 cup chips evenly over top. Bake 1 hour or until center springs back when lightly touched. Cool. Chill. Garnish as desired. Refrigerate leftovers.