This recipe is for cooking at 400°, see the recipe card below. However, if you want to cook it at 425°, that works too. I find the skin will come out crispier but be careful to not overcook it or it will dry out. For cooking brats at 425°, bake for 15 minutes if they are precooked bratwurst and if they are uncooked/raw cook them for 20-25 minutes.