Shepherd’s Pie with Ballymaloe Original Relish - Gluten-Free Heaven

Ingredients

• 30 g butter
• 110 g onion (peeled, chopped)
• 30 g gluten-free flour
• 450 ml stock or leftover gravy
• 1 tsp tomato puree
• 2 tsp Ballymaloe Original Relish
• 1 tsp fresh thyme leaves (chopped)
• 1 tsp parsley (chopped)
• salt and freshly ground pepper
• 450 g minced cooked lamb ( or sweet potatoes and lentils) )
• 450 g mashed potato
• garlic butter