This warm Sweet Onion Dip is simply divine. With just a few ingredients, this is destined to be your go-to dip for easy, crowd-pleasing entertaining.
I have been making this dip for years. It's loaded with wonderfully sweet onion flavor and a rich, creamy base that is deliciously addictive.
With just three main ingredients, this dip couldn't be easier to whip up, making it ideal for last-minute guests or snack cravings.
I love serving this dip with crackers or potato chips or adding it to this chips and dip board. It is also heavenly spooned over grilled chicken or as a filling for stuffed mushrooms.
If you love onion dip as much as I do, you will love my Caramelized Onion Dip or this Grilled Five Onion Dip.
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Ingredient notes
- Mayonnaise provides a rich base for this dip. With just a few ingredients in this dip, be sure to use good-quality mayonnaise for the best flavor. I prefer Duke's or Hellman's. Both full-fat and light mayo work in this recipe. Avoid low-fat or fat-free varieties. Miracle Whip is not recommended in this recipe.
- Gruyere cheese provides a wonderful nuttiness. Swiss cheese can be substituted although it will yield a milder flavor. Use freshly shredded cheese for the best flavor and melting quality.
- Sweet onions such as Vidalia, Maui, and Walla Walla are milder than other onions and provide a sweet flavor. If sweet onions are not available, yellow onions can be used.
How to make Sweet Onion Dip
See the recipe card for complete instructions and ingredient amounts.
Shallot topping
Cook the shallots in butter until brown and crisp.
Drain the shallots on a paper towel. Set aside.
Dip
Cook onions in butter until softened.
Combine onions, mayo, and garlic in a mixing bowl.
Fold in the shredded cheese.
Transfer the mixture to a baking dish.
Bake until lightly browned and bubbling around the edges. Top with the crispy shallots and serve.
Storing and reheating
Any leftovers should be cooled completely and stored in an airtight container in the refrigerator for up to 3 days.
Reheat in a 350-degree oven until warmed through.
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Expert Tips
- Use freshly shredded cheese for the freshest taste and best melting quality.
- Grate the garlic to infuse garlic flavor into every bite. A microplane works great for this.
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📖 Recipe Card
Baked Sweet Onion Dip
EQUIPMENT
Ingredients
- 1 cup diced sweet onion
- 3 tablespoons butter (divided)
- 1 cup mayonnaise
- 1 cup shredded Gruyere cheese
- 1 clove garlic (grated)
- 1 shallot (sliced)
- black pepper (to taste)
Instructions
- Preheat the oven to 400℉.
- In a small skillet, heat 2 tablespoons butter over medium heat. Add the onions and cook for 5 minutes until soft and translucent.
- Add the onions to a mixing bowl and combine with the mayonnaise and garlic. Fold in the Gruyere cheese and season with pepper.
- Transfer the mixture to a small baking dish. Bake for 15-20 minutes until golden and bubbly.
- Meanwhile, in the same skillet used to cook the onions, add the remaining 1 tablespoon butter and heat over medium. Add the shallots and cook until golden brown. Transfer the shallots to a paper towel-lined plate to drain.
- After removing the dip from the oven, garnish with the fried shallots. Serve with chips or crackers.
Notes
Nutrition
Nutritional information is an estimate and will vary depending on the exact amounts and specific ingredients used.
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