It's Ladd's birthday, so Ree Drummond makes his dream dinner. She creates a Guajillo Chili Pot Roast with a side of Creamy Rustic Mashed Potatoes that's topped with Chili Herb Cowboy Butter. Instead of a cake for dessert, Ree bakes decadent chocolate Chuckwagon Brownies. While Ladd spends the afternoon feeding cattle in the snow, Ree cooks the perfect cowboy birthday dinner.