Preheat oven to 375°F. To prepare buffalo sauce, melt butter in a skillet. Turn off stove as soon as butter is melted and before it begins to bubble. Add in sriracha sauce and stir until sauce is uniform. In a separate pan, cook chicken cubes until done. Pour half of the sauce in with the chicken and coat chicken.
In a 9-inch baking pie plate, spread softened cream cheese across the bottom until smooth. Add chicken on top. Add ranch dressing on top of chicken. Pour remaining hot sauce on top. Finally, top with shredded mozzarella.
Bake about 15-20 minutes until completely heated and top cheese layer starts to blister. If you can't get the nice blister effect, turn oven up to 400°F for an additional few minutes until it does. Serve hot with tortilla chips.
