Variations – Price changes per product NOT size

I’m building a site for a client (NDA, can not list website).

I’m stuck on the “Mixed Basket” section of their website. They sell cookies and I’m trying to achieve the following:

#1 – Select size (Large / Small)
#2 – Select up to 4 different types of cookies.

Now in theory that base is super simple, and has actually already been completed. My issue is there is ONE cookie that costs more than the others, and buy adding it to this basket is to increase the price of the basket but only ONE time.

IE:

Select Size: Large
Select Cookie: Chocolate Chip
Select Cookie: Chocolate Chip
Select Cookie: Raspberry Chip
Select Cookie: Raspberry Chip

Now, the base price of the basket is $40, but by choosing “Chocolate Chip” it needs to increase the total cost to $50 and with that increase it is only to add the $10 upcharge ONCE. I have it listed there 2 times, but it is not to cost $60 (40+20=60), it is only supposed to cost $50.

So how would one go about having a price adjustment for ONE product variation?

I’m running the most recent versions of WordPress and wooCommerce.

I did search all over google, and read numerous articles that you can alter the price based on ‘attributes’, and attempted to work that setup into WooCommerce however it is not the attribute that I need to attach the price increase to, it is the specific product itself.

Is this even possible?

https://www.ads-software.com/extend/plugins/woocommerce/