Copied from Zazie's Blog. Link:
Random DIY mixing and More
VT Croissant 2%
WF Croissant 1.5%
WF Mascarpone Cheese 1%
Note: SSA Mascarpone Cream will work as a sub. Both mascarpone's are good. In this recipe I much prefer the WF.
Steep time = 3 weeks. For me, the mix did not change after three weeks. YMMV. I tested this a few times from a SnV and a few times through 3 weeks. Early on it is not ready for prime time. The croissants and mascarpone absolutely need time to gel. At three weeks it was "ah yes, now we're talking"!
IMO neither croissant works as a true croissant on their own. Each lacks something the other has. The VT has a pretty light buttery note and is more of the outer crust. The WF is all about the insides of a croissant. The %'s can be swapped if one wants more of the croissant inside versus the crust. I've tried it both ways.
Together they make the perfect croissant and balance each other very nicely.
If more than a light butter note is desired add 0.15%-0.25% of either CAP, VT or SSA butter. I tested this with VT Butter Base and also with SSA Butter. Either works well.
The mascarpone cheese brings a nice mild cheesy creaminess to the mix. It could be left out and another cream could be subbed.
The base is good on it's own. I vaped plenty that way.
Besides a croissant this will work well as a base for a pastry or a danish along with any of the lighter fruits (apple, pear, banana, strawberry etc.). If going with a stronger fruit (like darker berries) you may need to increase the % of the croissants or darker fruits may overtake the croissant base. Adding a touch of FA Madagascar or Shisha vanilla brightens it up and adds another nice note. This will also work with a chocolate - however - go lightly so the croissant base still comes through.