Which preposition to use with syllabubs

into Occurrences 1%

Mix all the ingredients together, put the syllabub into glasses, and over the top of them heap a little whipped cream, made in the same manner as for trifle No. 1489.

of Occurrences 1%

Below us by some trick of eyesight, the country had grown concave, its horizon curving up like the rim of a shallow bowla bowl heaped, in point of fact, with sea fog, but to our eyes with a froth delicate and dazzling as a whipped syllabub of snow.

Which preposition to use with  syllabubs