how long do i bake ribs at 350
1 Set oven to 350 degrees. 2  Grease a large baking sheet/s. 3  Place the ribs (meat side up) on baking sheet. 4  Bake the ribs for 30 minutes. 5  Remove the ribs and brush on about 1/4 cup prepared sauce over each rack of ribs; return to oven and continue to bake for 20 minutes longer. Cool to about room temperature; cover and chill overnight or up to 2 days. 2  Sprinkle ribs with salt and pepper, then let the ribs sit out for 30 minutes at room temperature before baking. 3  Set oven to 350 degrees. 4  Grease a large baking sheet/s.