I knocked this recipe together on Saturday for a piece of topside, worked a treat so I thought I'd share.
Marinade ingredients:
1/4 cup olive oil
1/4 cup worcestershire sauce
2 tbsp (heaped) hot horseradish sauce (would use fresh horseradish if I'd had any)
Leaves from 2 sprigs of fresh thyme
1 clove of garlic (minced)
A little water to dilute.
Once mixed I put the beef in a vac sealer bag along with the marinade then vac packed it and left overnight.
Half an hour before cooking, I removed the beef and rubbed with malden and cracked black pepper. Smoked it in the Traeger on smoke for 3 hours then cranked it up to finish off to medium rare.
It's a lovely marinade, the horseradish wasn't particularly strong but added a little extra dimension that was delicious.