Preheat oven to 350 degrees.
Remove butter from refrigerator. Place into a medium-size mixing bowl. Let sit for 1 hour at room temperature. Add garlic, lemon juice, parsley, crushed peppers and salt. Blend mixture with your hands. Open French loaf on the hinge and apply garlic butter generously to each side of the bread. Close up bread and wrap with foil. Bake for 12-15 minutes and then unwrap and cut before serving.