The best ice cream should be rich, creamy and packed with flavor, without being overly sweet or gooey. Glacier, which got its start in Boulder but is slowly spreading along the Front Range, nails it with a dense, unctuous base and flavors so intense you won't even think about adding toppings. Traditionalists and adventurous eaters alike will find something to love in the kid-pleasing Three Nut Rocky Road or the more complex, adult flavors of the Blueberry Zinfandel sorbet or Green Tea White Chocolate gelato.