
First, prepare your choice of vegetables and bread for dunking. You can choose whatever you prefer (see note 1).
Add the olive oil, garlic and anchovies to a cold pan. Heat on low for about 15 minutes until the garlic and anchovies have melted together. Don't turn up the heat of the garlic will burn.
Add the butter and stir in until melted. Transfer the sauce to a serving dish (see note 2) and serve with your choice of vegetables and crusty bread.