Let it cool for a few minutes before serving with your choice of sides.
Variations & Tips
For a spicier version, add a teaspoon of horseradish or a dash of hot sauce to the mixture. If you prefer a milder flavor, substitute the Swiss cheese with a milder cheese like mozzarella. For a vegetarian twist, replace the corned beef with sautéed mushrooms or roasted red peppers. You can also make this dip in a slow cooker by combining all the ingredients and cooking on low for 2-3 hours, stirring occasionally.