Rare beef with mustard Yorkshires - Good Food Middle East

Ingredients

• 4 garlic clove
• 2 tbsp lemon thyme leaf
• 1 tbsp black peppercorns
• 1 tbsp wholegrain mustard
• 4 anchovy
• 2 tbsp olive oil
• 2.7kg rib of beef (mine was a large 2-rib), French trimmed and at room temperature
• 12-16 potatoes, peeled and halved, or quartered
• 4 tbsp olive oil
• 175ml full-fat milk
• 2 large egg and 1 large egg white
• 115g plain flour
• goose fat (from a can) or sunflower oil