Boissière's piece is a charming, modest salon work typical of the late Romantic pedagogical style. It prioritizes melody and simple harmonic accompaniment.
The primary challenge is balancing a singing melodic line against a delicate, unobtrusive accompaniment.
Comparable difficulty and character — good candidates for what to learn next.
Blondinette is rated Henle level 2 of 9 — beginner repertoire, roughly ABRSM grades 2–3. In the RCM system it corresponds to about level 2.
You should be comfortable at Henle level 2 — meaning you can already play level 1–2 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
A typical performance of Blondinette lasts about 2 minutes.
Blondinette is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.
Pieces at a comparable difficulty and character include Bernadette by Frédéric Boissière, Believe Me, If All those Endearing Young Charms by Irish Folk Music, "s'kommt ein Vogel geflogen" by Siegfried Ochs — see the full similar-pieces list on this page.