I usually halve the recipe but I am including the full amount here. Mix the flour and ginger, if using, together in a large bowl.Rub in the butter with your fingertips to create a chunky breadcrumb textured mixture. Easy . Adding fresh ginger and rolled oats makes the best crumble mix ever. It can be made in advance (the crumble topping separate from the rhubarb) and stored in the fridge or freezer. Possibly the best dessert in the entire world! This recipe from Jamie Oliver's cookbook Jamie at Home is a classic rhubarb crumble recipe with a twist. Stir through the sugar. Sprinkle the 40 ratings 4.8 out of 5 star rating. It is from Nigella Lawson's cookbook Feast. Make this classic rhubarb crumble for an easy, family-friendly dessert. 1 hr and 20 mins . Rhubarb & strawberry crumble with custard. Use seasonal rhubarb and a handful of ingredients to make a stunning pud. It's an absolutely delicious combination of flavors and really nice served with thick Jersey cream or cold custard Tart, sweet, and with the best crumble topping I have made yet. Apr 1, 2016 - A classic rhubarb crumble, a food drink post from the blog Jamie Oliver (UK) on Bloglovin’