Beef-pot Roast Tex-mex Style

• 2 garlic (cloves)
• 2 jalapeno peppers
• 2,300 gr beef bottom roast
• 170 ml spicy tomato juice
• 120 ml chili sauce
• 30 ml worcestershire sauce
• 30 gr lime
• 16 ml prepared mustard
• 4 gr cumin seeds
• 3 gr cilantro (fresh)