To make the basic hot chocolate, combine milk with half-and-half in a small saucepan. Warm over medium-low heat, then stir in chocolate chips. Stir until melted (though there will still be lovely particles of chocolate throughout.) If it's too chocolatey for you, splash in a little more milk. If it's not quite sweet enough for you, add 1 teaspoon sugar. Serve in mugs with whipped cream. VARIATIONSOrange Hot Chocolate: Add 4 slices of orange rind as you warm the milk mixture. Add a splash of orange syrup if you have it, but it isn't necessary.Raspberry Hot Chocolate: Add 3 tablespoons raspberry syrup to the hot chocolate. Drop a couple of raspberries into each cup. Mint Hot Chocolate: Drop 1 to 2 miniature peppermint patties into each mug before adding hot chocolate. Stir to melt. Mexican Hot Chocolate: Substitute 2 discs of Abuelita chocolate for the chocolate chips. Simmer cinnamon sticks in the saucepan with the hot chocolate. Add 1 cinnamon stick to each mug before serving.Garnish any and all variations with whipped cream or chocolate shavings.