Step 1

Add 1 Tablespoon butter and a drizzle of extra virgin olive oil to a large nonstick skillet over medium-high heat (oil will keep butter from burning.) Mix flour and lots of salt and pepper in a shallow dish then dredge chicken breasts and add to skillet. Saute until golden brown on both sides, 2-3 minutes a side. Chicken does not have to be completely cooked through. Remove to a plate then set aside.

Step 2

Add remaining tablespoon butter to skillet then add mushrooms, leeks, and shallot, season with salt and pepper, then saute until mushrooms are golden brown and tender, 5 minutes. Add garlic then saute for one more minute. Add chicken broth and tarragon then nestle chicken back into skillet and simmer until sauce has thickened and reduced, and chicken is cooked through, 3-4 minutes. Squeeze a bit of lemon juice over the skillet then stir to combine. Add more salt and pepper if necessary then serve.