Step 1

In a large saucepan over medium heat, combine the milk, cocoa and sugar. Bring them to a simmer and cook until they're heated through and well combined, two to three minutes. Editor's Tip: Don't scald the milk! If your burner is too hot, the milk can burn, and even slightly burnt milk will ruin hot chocolate.

Step 2

Add the semisweet chocolate and stir until it has melted, one to two minutes. Remove the saucepan from heat.

Step 3

Add the Irish cream liqueur. Pour the Baileys hot chocolate into mugs and garnish them as desired.