Leslie lived across the road from us and was a very good friend of Mums. Mum cooked this alot when we were growing up as kids. Make sure you weigh your roast for cooking times. I have quoted cook time for a 1 kilo roast. You may like to increase the paste mixture for larger size roasts.
- Preheat oven to 150°C.
- Mix mustard, soy and oil into paste.
- Spread over topside.
- Cook uncovered, 25 minutes for each 500grams.
- Stand for 15 minutes before serving.