mac n cheese ball

Ingredients 1/2 lb. anoboy dragon ball elbow macaroni 1 tbsp. anoboy dragon ball butter 1 c plus 1 tbsp all-purpose flour, divided 1 1/4 c whole milk 8 oz shredded sharp cheddar cheese 8 oz shredded pepper-jack cheese 1 (4-oz ) jar diced pimientos, drained, rinsed and patted dry 1 tsp kosher salt 1/4 tsp cayenne pepper 3 large