My brexit friend said that it wasn’t a big deal if we had to live on beans and toast for a while. I did point out to him that the beans aren’t actually grown in the UK. Surprisingly 
he did not know that.
This is not a boast list, but it’s a very bloody long one. I have always had extra in, as I had a poor childhood and swore I’d never go hungry again. However, with brexit, it’s got way bigger. I got a lot of tips and advice from other posters and I hope this gives others ideas. I don’t care if anyone thinks I’m over reacting, nuts, unbritish, scaremongering or just paranoid. If the wonderful land of plenty materialises, then great, because I don’t have to shop for the following for months. If prices shoot up, then it gives me breathing space. If I or my children are sick, the weather is horrendous, or people start panic buying, then at least I’m prepared. If I don’t eat or go off stuff, I can give it to the food bank.
I have at least 12 tins of each of the following:
Potatoes, that can be sliced and fried, added to soup to bulk them out, mashed to put on the top of pies.
Baked beans, which can also be rinsed to add to casseroles or salads or stews.
5 bean baked beans. See above.
Beans and sausages.
Sweet corn. I buy Tesco naturally sweet as it’s gorgeous and good value.
Peas. Can be eaten warm or added to casseroles, stews, etc.
Baby carrots. Not a fan of tinned carrots, but they’re good for stews.
Mixed veg,p. See above.
Tuna. Can be used with tinned, mashed potatoes and breadcrumbs to make fish cakes.
Tomatoes. For curries, pies, casseroles, etc.
Various soups.
Chick peas. Can make hummus, add to salad or eaten like nuts. Ok that last bit is probably just me. 😁
Hot dogs. Disgusting but my youngest would live on them and I can cut them up to bulk out a casserole for her.
Hunger breaks mixed grill. It has beans, sausage, diced potato, chicken nuggets and lamb nugget. Disgusting, but see above. It’s handy to cook if fuel is limited.
Big Soup. A filling soup or drain a tiny bit of the liquid off, mashed potatoes on top and you have a casserole.
Chicken in white sauce. Again for youngest and can be used as a pie filling.
Meatballs.
Tinned pineapple. Eaten as dessert, pizza topping for the weirdos or to use in sweet and sour sauce.
Various tinned fruits.
Custard.
Rice pudding.
Dried foods:
I buy good quality, quick cook spaghetti and pasta, as it saves money on fuel. Cheap pasta takes far too long.
Popcorn.
Peas.
Lentils.
Yellow chickpeas.
Rice.
Numerous packets of microwave rice, in different flavours.
Dried fruit.
12 boxes of Napolina pizza bases. That’s 24 pizzas.
About 25 cartons of apple, orange and pineapple juice. Tesco are doing apple juice called growers harvest which is good value and tastes nice.
I have very generous clients, so have about 12 tubs of various sweets, from Christmas.
Lots of spirits.
Six cases of Diet Coke and Fanta. Good for spirts and easier to ration.
Lots of wine, though I keep depleting the stock. 
50 cartoons of oatly oat milk (Barista edition) Doesn’t need to be stored in a fridge and can be used as ordinary milk.
Five tubs of hot chocolate.
Four tubs of coffee.
Extra coffee for the coffee machine too.
Two boxes of tea bags. Wee not big tea drinkers.
Various coffee syrups, that can also be used in the hot chocolate.
Two boxes of peppermint tea for indigestion, probably from eating all the tinned food. 😁
I have two excellent barbecues, that I can use as ovens and extra gas bottles.
Four large packs of toilet rolls and 24 kitchen rolls. I get them from home bargains and can highly recommend them. Good quality and great value.
Various cleaning fluids.
Good first aid kit and extra boxes of paracetamol and ibuprofen.
Extra months supply of my children’s drugs. I’ve been ordering them slightly sooner each time, to get ahead. Same with my meds.
I’ve kept the sleeping bags and hot water bottles, that I had intended to throw out, as I’m concerned that heating costs may sky rockets. I’ve also kept the old curtains to double line the current ones, if that happens.
Various frozen foods as I have an extra freezer.
I use the plastic drawers that can be bought in lots of shops, to store most of it. You can take the tops of them and fit them together to make one large stack. They each hold @ 18 ordinary tins and two pizza boxes or dried food, on top of the tins.