Baking – What kinds of apples are suited to be filled with cranberries and baked

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During the holidays, an apple cut in half and filled with cranberries or cranberry sauce is a commonly served item in Belgium. I want to make this too this year, but I'm not sure which kind of apple works best here.

I can imagine that this is opinion-based to some extent, but assume that I do not have any preferences. There are a few conditions my apples should meet.

Since they are baked in the oven, I don't want them to be too mushy. They should hold their shape and become soft, not squished apple sauce. Cranberry sauce is also quite tart, so I'd like apples that are sweeter. The peel is of no issue, I will peel them anyway.

What kinds of apples would be suited for my purpose? And which definitely not? (In Belgium we won't have the same kind of apples, but some are similar enough)

I have two side questions as well: is there a way to minimize colourisation of the apple (because of the cranberries) and how long and at what temperature should I bake the filled apples?

Best Answer

In his in depth review of pie apples, Kenji Alt points out:

Well, there's another thing that acid does: it strengthens pectin, the cement-like glue that holds together the cells of fruit. So looking at this arranged spectrum of apples is actually a pretty good indication of how well each fruit is going to hold up during baking. The further right along the browning scale, the firmer the apple should be in the finished pie.

This same affect will apply to baking apples filled with cranberries: you want an acidic apple, as they are going to hold their shape best when baked.

While I don't know the varieties available to you, he points out that the more acid the apple, the more slowly it browns when cut:

[A]cid can inhibit the browning oxidation reactions that take place in fruit flesh when it is exposed to the air. For this same reason, cooks will store trimmed artichokes in acidulated water—it prevents browning.

The slowest browning, and most acidic of the US apple varieties he tested was Granny Smith. This Whole Foods recipe for cranberry and almond stuffed apples concurs.

This goal of having a sweeter apple to counter-balance the cranberry filling is at odds with needing a more acidic apple to contrast with the cranberries.

Instead, you may be better served by adding sugar to the cranberry filling. Since both cranberries and apples are assertive flavors, they will stand up very well to a sweet filling.

Time and temperature for apples are pretty flexible. A survey of baked apple recipes shows options from 325 F (160 C) for about 45 minute to an hour to 400 F (205 C) for 15 minutes. The important thing is to take them out when they have become tender when tested by pushing a knife point through the body.

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