Rocky Road Ice Cream

My Father in law's favorite ice cream. This recipe is better than store bought.

1 (14 ounce) can sweetened condensed milk 1/2 cup unsweetened cocoa powder 2 cups heavy cream 1 cup light cream 1 tablespoon vanilla extract 1/2 cup chopped pecans 1 cup miniature marshmallows

Directions
In a medium saucepan over low heat, cook and stir condensed milk and cocoa until smooth and slightly thickened, 5 minutes. Remove from heat , and allow to cool slightly. Stir in heavy cream, light cream, and vanilla. Refrigerate until cold.
Pour mixture into the canister of an ice cream maker, and freeze according to manufacturer's directions. Stir in nuts and marshmallows halfway through the freezing process.