Mix all ingredients except stock to create marinade. Marinate the roast in the fridge in a plastic bag or Tupperware for 12 to 24 hours. Turn the roast 2 to 3 times during this period.
Preheat oven to 200°F (for convection roast), or 225°F (for regular roasting). Pour marinade into a Dutch oven, add chicken broth, and combine. Add roast to Dutch oven and place in oven, uncovered.
Cook until internal temperature reaches 137°F (rare), or 142°F (medium-rare). Remove roast from Dutch oven and set on a plate to drain. Move Dutch oven to stovetop, and reduce braising liquid by at least one-half (a bit more is fine), taking care not to burn. Pour reduction through cheesecloth into a gravy separator. Solids can be mashed and spread on bread (or matzah). Save strained jus to serve, warmed, with the roast.
Heat a small amount of oil in a cast iron or stainless steel skillet. Pat roast dry if necessary, and sear on all sides.
Remove netting before slicing
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