Ingredients

1/2 cup salted shelled roasted pistachios 

1/2 cup packed fresh flat-leaf parsley 

1 small clove garlic, smashed and peeled 

1/2 cup extra-virgin olive oil 

2 tablespoons red-wine vinegar 

2 tablespoons finely grated Pecorino Romano 

4 small carrots, peeled, ends left intact 

4 small parsnips, peeled 

2 beets, peeled and cut into 1/2-inch wedges 

8 cipollini onions 

1 bulb fennel, cut into wedges, core intact 

2 dried bay leaves 

1 teaspoon whole coriander seeds 

3 dried red chiles 

4 to 5 cups extra-virgin olive or canola oil 

Preparation

Pistachio Pesto:In a mini food processor, pulse pistachios, parsley, and garlic with oil until finely chopped. Add vinegar and cheese; pulse to combine. Transfer to a bowl. Pesto can be refrigerated in an airtight container up to 3 days. Makes about 1/2 cup.

Root-Vegetable Confit:Preheat a 5-to-6-quart slow cooker. Combine carrots, parsnips, beets, onions, fennel, bay leaves, coriander seeds, chiles, and oil in slow cooker. Cover and cook on high until tender, about 2 1/2 hours (or on low 5 hours).

Let cool in oil 30 minutes; then, using a slotted spoon, transfer to a wire rack set over a rimmed baking sheet to drain. Serve, with pesto alongside.

In a mini food processor, pulse pistachios, parsley, and garlic with oil until finely chopped. Add vinegar and cheese; pulse to combine. Transfer to a bowl. Pesto can be refrigerated in an airtight container up to 3 days. Makes about 1/2 cup. Preheat a 5-to-6-quart slow cooker. Combine carrots, parsnips, beets, onions, fennel, bay leaves, coriander seeds, chiles, and oil in slow cooker. Cover and cook on high until tender, about 2 1/2 hours (or on low 5 hours).