Skip to main content

Slow-Roasted Onion Dip

Slow roasted onion dip recipe
Photo by Heidi's Bridge

Like the one you make with the packet of soup mix, but with no weird chemicals and 1,000 percent tastier. While most dips like this require you to babysit caramelizing onions on the stovetop for what feels like forever, our (relatively) hands-off version lets the oven do most of the work. It's kind of counterintuitive, but you want to keep the onions and garlic in a mound on the sheet pan rather than spreading them out; this allows them to steam and soften without browning too quickly.

All products featured on Epicurious are independently selected by our editors. However, when you buy something through our retail links, we may earn an affiliate commission.

What you’ll need

Recipe information

  • Yield

    4 servings

Ingredients

1½ lb. mixed onions (such as sweet, yellow, and/or red)
4 garlic cloves, unpeeled
¼ cup extra-virgin olive oil
Kosher salt
1½ cups plain whole-milk Greek yogurt
2 tsp. fresh lemon juice
Freshly ground black pepper
1 bunch radishes
Potato chips and cayenne pepper (for serving)

Preparation

  1. Step 1

    Preheat oven to 400º. Peel and trim ends off 1½ lb. mixed onions. Cut in half lengthwise. Place halves cut side down on cutting board, then thinly slice.

    Step 2

    Line a rimmed baking sheet with parchment paper. Toss onion and 4 garlic cloves with ¼ cup oil and 2 Tbsp. water until evenly coated. Season with salt and toss again until well coated. Mound onions and garlic in center of sheet pan rather than spreading them out; this allows them to steam and soften without browning too quickly.

    Step 3

    Bake, tossing and stirring onions every 10 minutes, until all onions are golden brown and softened, 40–50 minutes total (some onions will brown more than others but that’s okay!). Let cool.

    Step 4

    Transfer onions and garlic to a cutting board and squeeze out garlic cloves from peel. Using the flat side of a chef’s knife, smash garlic cloves to a paste. Transfer to a medium bowl.

    Step 5

    Finely chop caramelized onions and transfer to bowl with garlic.

    Step 6

    Add 1½ cups yogurt and 2 tsp. lemon juice; season with salt and lot of pepper. Stir to combine.

    Step 7

    Cut 1 bunch radishes in half and arrange on a platter. Sprinkle dip with cayenne pepper. Serve radishes and chips alongside.

Read More
Roasted poblanos, jalapeños, and red onion are coated with a melty sauce—warm with the flavors of pepper jack, and stabilized with a block of cream cheese.
A flavorful one-pan meal featuring baked pierogies, roasted beets, and a poppy seed dressing. Frozen pierogies and pre-cooked beets make this extra easy.
Forget regular baked potatoes—these tender sweets loaded with chaat-inspired toppings make for a bright and flavorful vegetarian main (or colorful side dish).
Braising canned chickpeas in chicken stock and olive oil makes them unbelievably tender and buttery. This is worth the effort of peeling 40 cloves of garlic.
Chock-full of spinach, herbs, and feta, this nourishing skillet will shine at any meal.
Everyone’s favorite pigs in a blanket goes Chicago-style, complete with celery salt, poppy seeds, and a cheeky cornichon.
Lacking an actual tandoor, the air fryer might be the best way to make chicken tikka. Juicy, charred, and well-spiced, it’s your new weeknight MVP.
Inspired by Korean pajeon, this shrimp-studded pancake features fresh snap peas as a spring-y addition.