I use Maesri Thai Red Curry Paste which I think is the best by a long shot. I also use this same brand for Green Curry and Red Curry for quick midweek curries.
It also happens to be the cheapest, at around $1.30 per can at major supermarkets like Coles, Woolies and Harris Farms.
Best Thai red curry paste Maesri
How to make Thai Peanut Sauce
Thai Peanut Sauce is almost unbelievably simple to make. It’s literally just a 5 minute plonk-and-simmer job:
coconut milk
red curry paste
cider or white vinegar (not lime juice!)
pure peanut butter (see below for more info)
soy sauce
sugar
cooking salt / kosher salt (halve the quantity if you only have table salt which is finer. So 1 tsp cooking salt / kosher salt = 1/2 tsp table salt).
How to make Thai peanut sauce
For the BEST Thai Peanut Sauce, use natural peanut butter
While commercial peanut butter spread is ok, if you want a really great authentic Thai Peanut Sauce that truly stacks up to your favourite Thai restaurant, use pure peanut butter. You’ll find it in the health food section of most supermarket nowadays.
Pure peanut butter is made with JUST peanuts – no sugar, oil or other additives – so the peanut flavour is stronger.
Also, natural peanut butter is thinner than commercial peanut butter spreads (see below) which means you need less water to thin the sauce = better peanut flavour in Thai Peanut Sauce!
Ahead of publishing this recipe, I tried the Thai Peanut Sauce with natural pure peanut butter vs commercial peanut butter (Kraft, now Bega) side by side to confirm this!