4 potato and celery root gratin with leeks Recipes

heavy cream, garlic cloves, peeled, thyme plus 3 tsp fresh leaves, divided, unsalted butter, divided, leeks, white and pale-green parts only, halved lengthwise, thinly sliced crosswise, kosher salt, russet potatoes, peeled , very thinly sliced crosswise (1/8 thick), celery root, peeled , very thinly sliced crosswise (1/8 thick), grated gruyere, freshly ground black pepper

unsalted butter, softened, butternut squash, peeled and thinly sliced, red potatoes, peeled and thinly sliced, celery root (celeriac), peeled, cut in half and thinly sliced, leek, washed well, white and green part only, thinly sliced, swanson vegetable broth (regular or certified organic ), heavy cream, minced fresh thyme leaves, ground nutmeg, grated parmesan cheese

heavy cream, garlic peeled, thyme plus 3 tsp fresh leaves divided, unsalted butter, divided, leeks white and pale green parts only halved lengthwise, thinly sliced crosswise, kosher salt, russet potatoes peeled thinly sliced, celery root peeled thinly sliced, grated gruyere cheese, freshly ground pepper