Step 1

To make the marinade: Whisk together the lime-juice, olive oil, garlic, oregano leaves, cumin, salt and pepper in a bowl.

Step 2

Divide the marinade in between two 1-gallon resalable plastic bags. Place two hens in each bag, make sure the marinade is distributed evenly (going into the cavity of the hens) and press to get as much air as possible out of it before sealing. Repeat the same process for the other two hens. Place them in the fridge and marinade for at least 4 hours or preferably overnight.

Step 3

To roast the Cornish hens: Pre-heat the oven to 425 degrees.

Step 4

Arrange slices of onion at the bottom of a casserole dish or a large ducth oven. Place hens, the marinade, and water on the bed of onions. Sprinkle the hens with freshly ground black pepper. If preferred, slice a fresh lime and place it around the birds.

Step 5

Roast for 20 minutes. Reduce the heat to 375 F degrees and roast for 1 hour 15 minutes to 1 hour 30 minutes.

Step 6

Let them rest for 20 minutes, garnish with fresh herbs, and serve.