Shrimp Rolls - Sauced by Sunday

Ingredients

• 1lb peeled, deveined, tail removed cooked shrimp
• 1-2 celery stalks finely chopped
• 3 green onions thinly sliced
• 2 tbsp fresh dill chopped (half for mixture half for garnish)
• ¼ cup mayo
• 1 lemon juiced
• 1 tsp apple cider vinegar
• 2 tsp prepared horseradish
• ½ tsp old bay
• Salt and pepper
• 4 top slit hotdog buns
• 4 tbsp softened butter