Horseradish Crusted Prime Rib

Number of Servings: 3-4

3-4 rib prime rib roast
1-1 1/2 c grated horseradish
1 tbsp died dill weed
1/2 c sour cream
2tbsp butter
2 tbsp flour
1 c milk
1/4 c horseradish

Paint prime rib with sour cream. Mix horseradish, dill and salt together. Roll prime rib in this mixture making sure to cover completely. Put in open roaster cook at 400 for 1 hour, reduce heat to 350 and continue to cook until internal temperature is 150 degrees. Let rest before cutting serve with horseradish sauce and mashed potatoes.
SAUCE-Melt butter until melted, stir in flour cook over low heat until bubbly and smooth. Remove from heat, add milk heat till boiling stirring constantly for 1 minute. Stir in horseradish and serve over slice prime rib with mashed potatoes.