Date and peanut butter bars recipe - help needed please!

[Happydaze2]

Have followed this recipe for a healthy(ish) no-bake flapjack:
175g finely chopped dried dates
125g crunchy peanut butter
100g oats
2tbsp honey
You bung everything in a food processor, pulse till well mixed then press into a baking tray/tin and chill.
I could see the mixture was v crumbly so I’ve had it in the freezer for a couple of hours but it’s still too crumbly to slice. It tastes yummy though
What could/should I have done differently? Basically the recipe seems to lack a binding agent - more honey needed, or something else?
I’d appreciate any tips

I wonder if heating the peanut butter and honey so its melted before mixing would help, so that it can spread better through all the ingredients. You'd heat the butter and golden syrup before mixing with the oats in flapjack and proportions of wet to dry are about the same (2 tbs golden syrup, 4 oz butter, 6 oz Demerara sugar, 8 oz oats)